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March 2, 2015

March 2, 2015

Posted by **gary** on Saturday, July 13, 2013 at 1:45pm.

B. Barrie is now 2 years older than Krista. In 15 years Barrie's age will be 2 years more than twice Krista's age now. How old will Barrie be in 6 years?

C. John is now 10 years older than Marcus. Three times John's age 5 years from now will be the same as five times Marcus's age 5 years ago. How old is John now?

D. In 1 year Kristen will be four times as old as Danielle. Ten years from then Kristen will only be twice as old as Danielle. How old is Kristen now?

- math -
**Jack**, Saturday, July 13, 2013 at 2:22pmA. 12+x+8=2x

20+x=2x

(subtract "x" from both sides)

x=20

B. x+2+15=2+2x

(subtract "2" from both sides)

x+15=2x

(subtract "x" from both sides)

x=15 (Krista's age)

15+2=17 (Barrie's age now)

17+6=23

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